The compound is kind of waxy, you rub it on like a crayon, and then a little heat can help drive it into the leather. A candle or hair dryer should do the trick. Heat it up then give it a couple of strokes with a knife blade like you're buttering toast, to drive it down into the leather. I prefer to use a cheap knife for this so I don't muck up a sharp edge <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />